Key;
Laboratory;
of;
Oil;
and;
Gas;
Resources;
Research,;
Chinese;
Academy;
of;
Sciences,;
Lanzhou;
730000,;
China;
of;
Exploration;
and;
Development,;
Tu-Ha;
Oilfield;
Company;
of;
China,;
Hami;
839009,;
China;
天然气资源; 地球化学特征; 吐哈盆地; 轻烃参数; 低熟气; 碳同位素组成; 鉴定; 母质类型;